From 2001 to 2006, Attia began a residency in
general surgery at the
Johns Hopkins Hospital in
Baltimore,
Maryland, but never completed his residency, nor did he complete a fellowship or become board certified. He also undertook research at the
NIH in
Bethesda, Maryland, investigating
cancer immunotherapy for
melanoma. After dropping out of his residency program, Attia joined the consulting firm
McKinsey & Company in the
Palo Alto office as a member of the Corporate Risk Practice and Healthcare Practice. In 2014, he founded a private clinic dedicated to
longevity medicine. Attia also created the blog "The Eating Academy" (later "War on Insulin" and now peterattiamd.com) that mostly focuses on topics related to
nutrition,
physical activity, and
longevity. Subsequently, he launched the podcast
The Peter Attia Drive, in which he interviews experts each week, covering topics such as longevity, metabolic health, and medical research. In 2012, Attia co-founded the Nutrition Science Initiative (NuSI) with
Gary Taubes, with a primary focus on promoting nutrition research and tackling the growing health challenges linked to obesity, diabetes, and metabolic diseases. In 2013, Attia was a speaker at
TEDMED, where he shared insights on longevity. Attia has a chapter giving advice in
Tim Ferriss's book
Tools of Titans. He had a central role in
Limitless with Chris Hemsworth, a six-part documentary for
National Geographic and
Disney+ starring
Chris Hemsworth and directed by
Darren Aronofsky. In episode 5, Attia told Hemsworth that he carried the high-risk
APOE4 allele, which places him at elevated risk of
neurodegenerative aging of the Alzheimer's type. In 2017, he posted on his YouTube Channel, with his first set of videos being instructional exercise videos. It now has more than a million subscribers and focuses on longevity content. On March 28, 2023, Attia (with coauthor Bill Gifford) published his book
Outlive: The Science & Art of Longevity. According to
The New York Times Magazine, the book "has been a runaway best seller since it was published this spring [of 2023]"; it was No. 3 on the Amazon Charts for nonfiction as of August 24, 2023. In October 2025, Attia appeared on CBS's
60 Minutes, where he discussed the role of structured exercise and preventative health strategies in extending health span. In January 2026, Attia, along with various other health influencers, was announced as a new contributor to
CBS News. Attia resigned the following month after the release of the
Epstein files revealed that he had exchanged emails with child sex offender
Jeffrey Epstein. == Relationship with Jeffrey Epstein ==